Lubricator.



S. n J. JOHNSON.

LUBRIGATOR.

APPLIGATION FILED MAY 14, 1913 Patented Sept. 272, 1914.

"UNITED STATES IPATENT OFFICE.

SWEN JOHNSON,

LUBRIGATOR.

To all whom t may concern:

Be it known that we, SwEN JOHNSON and JOHN JOHNSON, citizens of the `United States, residing, respectively, at Huron, county of Beadle, State of South Dakota, and Missoula, in the county of.v Missoula and State of Montana, have invented certain new and useful Improvements in Lubricators, of which the following is a specification.

Our invention relates to improvements in lubricators and is designed for use in connection with steam or other fluid pressure engines.

The primary object of our invention -is the provision of a lubricator feeding device especially adapted for use with steam engines, that will be simple and inexpensive of construction, that will be automatic in its operation thereby saving the lubricant;l and one that may be regulated with facility.

he invention consists essentially in certain novel features of construction and combinations and arrangements of parts whereby a device is provided in which the feed of the lubricant is constant and dependent upon the steam pressure, and which feed is automatically cut off when the steam pressure is cut oli. In this connection the feeding device is especially applicable for locomotives and other engines in which the steam is shut off at intervals, and the automatic operation of the feeding device renders it peculiarly adaptable for use in connection with the air pump of a locomotive which is automatically actuated.

In the accompanying drawings we have illustrated one complete example of the physical embodiment of our invention, omitting the sight feed glass, constructed according to the best mode we have so far devised for the practical application of the principles thereof.

igure l is vertical central sectional view of the device, partly in elevation, and constructed according to our invention. Fig. Q is a bottom plan view, a portion being shown in transverse section. Fig. 3 is a side elevation of the device. Fig. 4 is a bot- `:om plan view.

In the preferred embodiment of our infention we employ the body of the feeding levice designated by the letter A to which s secured by screw threads, the open cylinlrical casing B. Within the casing or or HURON, SOUTH DAKOTA, AND roHN JOHNSON, or MISSOULA,

MONTANA.

oil is admitted to the feed Patented Sept. 22, 1914. serial No, 767,701.

cylinder a piston head C is inclosed and adapted to reciprocate, being guided through the perforated bottom of the cylinder, by its stem C.

By means of the packing nut G the feed- Ving device may be attached to the glass tube as usual, and the glass may have the usual drain valve actuated by the stem H.

Steam is admitted to the interior of the cylinder B by pipe I and passage B', and through the pipe J, and passages J and J2 conduct the lubricant to the glass.

A drain cock K is employed to drain the cylinder B, and L indicates the place of attachment to drain the feed glass. By means of the threaded boss a the device may be attached to an oil chamber of suitable type- In operation, it will be understood that the piston C is lifted by means of the spring F, and by means of the piston, the valve stem D and its valves l and 2 are closed, preventing feed of oil through passage J2, and leak of oil through passage 2 into the cylinder. When the throttle is opened and steam is admitted through the pipe I, it passes through passage B into the cylinder and the pressure of the steam the piston withdraws the stem D and the valve l from its Seat. The withdrawal of the valve l permits the flow of oil through pipe J, passage J and passage J2 to the glass, from whence it is conducted to the part to be lubricated as usual. When steam is shut o, and lubrication is unnecessary, the spring F forces the piston C from its seat 3 and closes the valve l to cut ofi' the Supply of oil. The stem may be adjusted by turning its threads in the cylinder to regulate the flow of oil,

and when so regul Copies of this patent maybe lated the parts rnarv be held in adjusted position. n Having thus fully described our invention, what we claim as new and desire to secure by Letters Patent is In a lubricator, cylinder and a piston integral hollow stern, and a body portion provided with a steam in communication with the cylinder, of a Valve stem adjustable in the piston stem to close the Oil passage, and a spring surrounding the piston stem and urging the piston to close the valve in the Oil passage.

the combination with a therein having an inlet and Oil passage I In testimony whereofv we aiiX our signaturesl 1n presence, O two witnesses.

swHN JOHNsON. JOHN JOHNSON.

Witnesses. as to the signature of Swen Johnson: v

C; J. RIG, MAX ROYNE. v Witnesses as to the signature V of Johny Johnson: s

R. L. GARD,

J. L. KENNETH.

obtained for ve cents'each, by addressing the Commissioner oi Aratent's,

Washington, D. C.- 

